<!--
 * Tencent is pleased to support the open source community by making BK-JOB蓝鲸智云作业平台 available.
 *
 * Copyright (C) 2021 THL A29 Limited, a Tencent company.  All rights reserved.
 *
 * BK-JOB蓝鲸智云作业平台 is licensed under the MIT License.
 *
 * License for BK-JOB蓝鲸智云作业平台:
 *
 *
 * Terms of the MIT License:
 * ---------------------------------------------------
 * Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated
 * documentation files (the "Software"), to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and
 * to permit persons to whom the Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in all copies or substantial portions of
 * the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT
 * THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF
 * CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
 * IN THE SOFTWARE.
-->

<template>
    <div
        class="step-execute-script-log"
        v-bkloading="{
            isLoading, opacity: .1,
        }">
        <div class="log-wraper">
            <div v-once id="executeScriptLog" style="height: 100%;" />
        </div>
        <div class="log-status" v-if="ip && isRunning">
            <div class="log-loading">{{ $t('history.执行中') }}</div>
        </div>
        <div class="log-action-box">
            <div class="action-item" v-bk-tooltips="backTopTips" @click="handleScrollTop">
                <Icon type="up-to-top" />
            </div>
            <div class="action-item action-bottom" v-bk-tooltips="backBottomTips" @click="handleScrollBottom">
                <Icon type="up-to-top" />
            </div>
        </div>
    </div>
</template>
<script>
    import _ from 'lodash';
    import ace from 'ace/ace';
    import 'ace/mode-text';
    import 'ace/theme-monokai';
    import 'ace/ext-searchbox';
    import I18n from '@/i18n';
    import TaskExecuteService from '@service/task-execute';
    import mixins from '../../mixins';

    export default {
        mixins: [
            mixins,
        ],
        props: {
            name: String,
            stepInstanceId: {
                type: Number,
                required: true,
            },
            ip: {
                type: String,
            },
            retryCount: {
                type: Number,
                required: true,
            },
            logFilter: {
                type: String,
                default: '',
            },
            fontSize: {
                type: Number,
                default: 12,
            },
            lineFeed: {
                type: Boolean,
                default: true,
            },
        },
        data () {
            return {
                // 日志loading，切换主机的时候才显示
                isLoading: true,
                // 是否执行中
                isRunning: false,
                // 自动动滚动到底部
                isWillAutoScroll: true,
            };
        },
        watch: {
            /**
             * @desc 查看的日志目标改变，重新获取日志
             *
             * 日志目标改变，重置页面操作的数据
             */
            name: {
                handler () {
                    // 日志自动滚动
                    this.isLoading = true;
                    this.autoScrollTimeout();
                    this.fetchLogContent();
                },
                immediate: true,
            },
            /**
             * @desc 字体大小改变时虚拟滚动重新计算
             */
            fontSize: {
                handler (fontSize) {
                    this.editor.setFontSize(fontSize);
                },
            },
            lineFeed: {
                handler (lineFeed) {
                    setTimeout(() => {
                        this.editor && this.editor.setOptions({
                            wrap: lineFeed ? 'free' : 'none',
                        });
                    });
                },
                immediate: true,
            },
        },
        created () {
            this.backTopTips = {
                content: I18n.t('history.回到顶部'),
                placements: [
                    'top',
                ],
                theme: 'light',
            };
            this.backBottomTips = {
                content: I18n.t('history.前往底部'),
                placements: [
                    'top',
                ],
                theme: 'light',
            };
        },
        mounted () {
            this.initEditor();
        },
        methods: {
            /**
             * @desc 获取脚本日志
             */
            fetchLogContent () {
                if (!this.ip) {
                    this.isLoading = false;
                    return;
                }
                TaskExecuteService.fetchLogContentOfIp({
                    stepInstanceId: this.stepInstanceId,
                    retryCount: this.retryCount,
                    ip: this.ip,
                })
                    .then(({
                        finished,
                        logContent,
                    }) => {
                        this.isRunning = !finished;
                        this.$nextTick(() => {
                            this.editor.setValue(_.trim(logContent || '', '\n'));
                            this.editor.clearSelection();
                        });
                        // 当前主机执行结束
                        if (!finished) {
                            this.$pollingQueueRun(this.fetchLogContent);
                        }
                    })
                    .finally(() => {
                        this.isLoading = false;
                    });
            },
            initEditor () {
                const editor = ace.edit('executeScriptLog');
                editor.getSession().setMode('ace/mode/text');
                editor.setTheme('ace/theme/monokai');
                editor.setOptions({
                    fontSize: this.fontSize,
                    wrapBehavioursEnabled: true,
                    copyWithEmptySelection: true,
                    useElasticTabstops: true,
                    printMarginColumn: false,
                    printMargin: 80,
                    showPrintMargin: false,
                    scrollPastEnd: 0.05,
                    fixedWidthGutter: true,
                });
                editor.$blockScrolling = Infinity;
                editor.setReadOnly(true);
                const editorSession = editor.getSession();
                // 自动换行时不添加缩进
                editorSession.$indentedSoftWrap = false;
                editorSession.on('changeScrollTop', (scrollTop) => {
                    const {
                        height,
                        maxHeight,
                    } = editor.renderer.layerConfig;
                    this.isWillAutoScroll = height + scrollTop + 30 >= maxHeight;
                });
                this.editor = editor;
                this.$once('hook:beforeDestroy', () => {
                    editor.destroy();
                    editor.container.remove();
                });
            },
            /**
             * @desc 外部调用
             */
            resize () {
                this.$nextTick(() => {
                    this.editor.resize();
                });
            },
            /**
             * @desc 日志滚动定时器
             */
            autoScrollTimeout () {
                if (this.isWillAutoScroll && !this.isLoading) {
                    this.handleScrollBottom();
                }
                setTimeout(() => {
                    this.autoScrollTimer = this.autoScrollTimeout();
                }, 1000);
            },
            /**
             * @desc 回到日志顶部
             */
            handleScrollTop () {
                this.editor.scrollToLine(0);
            },
            /**
             * @desc 回到日志底部
             */
            handleScrollBottom () {
                this.isWillAutoScroll = true;
                this.editor.scrollToLine(Infinity);
            },
        },
    };
</script>
<style lang='postcss'>
    @keyframes script-execute-loading {
        0% {
            content: '.';
        }

        30% {
            content: '..';
        }

        60% {
            content: '...';
        }
    }

    .step-execute-script-log {
        position: relative;
        height: 100%;
        max-height: 100%;
        min-height: 100%;

        .log-wraper {
            position: absolute;
            top: 0;
            bottom: 20px;
            left: 0;
            width: 100%;
            padding-right: 20px;

            .ace_editor {
                overflow: unset;
                line-height: 1.6;
                color: #c4c6cc;
                background: #1d1d1d;

                .ace_gutter {
                    padding-top: 4px;
                    margin-bottom: -4px;
                    color: #63656e;
                    background: #292929;
                }

                .ace_scroller {
                    padding-top: 4px;
                    margin-bottom: -4px;
                }

                .ace_hidden-cursors .ace_cursor {
                    opacity: 0 !important;
                }

                .ace_selected-word {
                    background: rgba(135, 139, 145, 0.25);
                }

                .ace_scrollbar-v,
                .ace_scrollbar-h {
                    &::-webkit-scrollbar-thumb {
                        background-color: #3b3c42;
                        border: 1px solid #63656e;
                    }

                    &::-webkit-scrollbar-corner {
                        background-color: transparent;
                    }
                }

                .ace_scrollbar-v {
                    margin-right: -20px;

                    &::-webkit-scrollbar {
                        width: 14px;
                    }
                }

                .ace_scrollbar-h {
                    margin-bottom: -20px;

                    &::-webkit-scrollbar {
                        height: 14px;
                    }
                }
            }
        }

        .log-status {
            position: absolute;
            bottom: 0;
            left: 0;
            padding-left: 20px;
            color: #fff;
        }

        .log-loading {
            &::after {
                display: inline-block;
                content: '.';
                animation: script-execute-loading 2s linear infinite;
            }
        }

        .keyword {
            color: #212124;
            background: #f0dc73;
        }

        .log-action-box {
            position: absolute;
            right: 20px;
            bottom: 20px;
            z-index: 10;
            display: flex;

            .action-item {
                position: relative;
                display: flex;
                width: 32px;
                height: 32px;
                margin-left: 12px;
                font-size: 18px;
                color: #000;
                cursor: pointer;
                background: rgba(255, 255, 255, 0.8);
                border-radius: 50%;
                align-items: center;
                justify-content: center;

                &:hover {
                    background: rgba(255, 255, 255);
                }

                &.action-bottom {
                    transform: rotateZ(180deg);
                }
            }
        }
    }
</style>
